Hot-water furnace



No. 749,740. PATENTED JAN. 19, 1904. F. LUMYER.

HOT WATER FURNACE.

APPLICATION FILED JULY 29, 1903.

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PATENTED JAN. 19, 1904.

F. LUMYER. HOT WATER FURNACE.

APPLICATION FILED JULY 29, 1903.

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, UNITED STATES Patented January 19, 1904.

PATENT OFFICE.

HOT-WATER FURNACE.

SPECIFICATION forming part of Letters Patent No.749,740, dated January19,1904.

Application filed July 29, 1903. Sacrial No- ,167,433. (No model.)

T0 aZZ whom it may concern.-

Be it known that I, FRED LUMYER, a citizen of the United States,residing at North Monroeville, county of Erie, and State of Ohio, haveinvented new and useful Improvements in Hot-Water Furnaces, of which thefollowing is a specification.

My invention. relates to improvements in hot-water furnaces, and iscomposed of two separate heads having water-spaces provided therein andconnected by means of a series of pipes.

The object of my improvement is to provide a means of bringing thesurfaces of the inner series of pipes in close contact with the fuel,whereby a larger number of square inches of heating-surface is broughtwithin the radius of the heat-waves generated from the fuel or othercombustible material.

A further object is to provide a means of thoroughly circulating thewater from the time it is admitted to the inner head through the mediumof suitable inlet-pipes until it is finally forced out through suitableapertures provided in the outer'head.

I attain these and other objects by the construction of the hot-waterfurnace which is illustrated and described in the accompanying drawings,in which Figure 1 isan end elevation of the inner and outer heads of thefurnace, showing an end view of the return-bends which connect a seriesof pipes. Fig. 2 is a front view in crosssection, taken on the line Y Yof Fig. 3, showing apertures provided in the. inner and outer heads,into which the series of pipes are fitted, also apertures through whichthe water is admitted into the inner head and the apertures throughwhich the water is forced out in the outer head. Fig. 3 is a side viewin crosssection, taken on line X X of Fig. 1, showing the series ofpipes connected to the inner and outer heads through the medium ofsuitable return-bends, also a side view in cross-section of the furnaceframe and door.

In constructing my hot-water furnace I provide an inner head a and anouter head 6, preferably of the shape shown in the drawings, Figs. 1 and2. The outer head is adapted to fit around the outer edge of the innerhead, as shown by reference-letter c. A series of suitable pipes clarescrew-threaded and adapted to fit suitable apertures e, providedinthe innerand outer heads. It will be noted that the apertures areprovided in the heads so as to leave the apertures provided in the outerhead at a higher plane than the apertures provided in the inner head,the purpose of whichis to leave the pipes wider apart at the point oftheir connection to the inner and outer heads than they are at the pointof their connection to the return-bends f. It will be noted that thepipes are all connected on an incline with relation to. the inner andouter heads, providing a means of raising the water as it passes throughthe pipes. In the upper portion of the inner head a suitable flue g isprovided,through which the smoke and gases pass out. Suitable grate-barsit are provided and attached to the furnace by any ordinary fasteningmeans. An ordinary furnace-front '1, and door 3' are provided andadapted to contact with the return-bends f.

In the operation of my furnace water is admitted through the aperturesis. It then circulates or flows through the apertures e into the pipesn, which are connected to the inner head of the furnace. It is thencarried through these pipes and through the return-bends f and deliveredinto the pipes 12, which are connected to the outer head. The water isthen forced out through the apertures 0, provided in the top of theouter head. It will be noted that this provides for a thoroughcirculation of the water from the time it enters the inner head throughthe inlet-pipe and is delivered to the apertures 7c until it is forcedthrough the series of pipes connecting the inner and outer heads untilit is finally forced out through the apertures 0,-as practically all ofthe pipes are brought in close contact, utilizing a large proportion ofthe heat generated.

Slight changes in the construction of the pipes or heads can be madewithout deviating from the principle involved in my invention.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-

1. A combination of an inner and outer head having suitable aperturesprovided,therein and adapted to connect a series of pipes communicatingwith said heads, substantially as and for the purpose described.

2. A combination of an inner and outer head with suitable aperturesprovided therein, a series of pipes adapted to fit said apertures,return-bends connecting said pipes whereby the inner and outer heads areconnected together.

3. A hot-water furnace composed of an inner head, having a series ofapertures provided through which water is delivered, a series ofapertures provided in said head, a series of pipes fitted in the saidapertures, an outer head adapted to fit the exterior of the inner head,having a series of apertures provided therein into which a series ofpipes are fitted, areturnbend connecting the pipes so as to leave thepipes on an incline with relation to said heads, a series of'aperturesprovided through which water is forced out.

4. In a hot-waterfurnace, a combination of vided therein, a series ofpipes fitted to the outer head-,a second series of pipes fitted to theinner head, return-bends connecting said pipes, whereby the inner andouter heads are brought in communication with each other, providing ameans of circulating the water after its admission, substantially as andfor the purpose described.

FRED LUMYER. Witnesses: J. M. GARLIsLE,

THOMAS W. JOHNSON.

